Lampiran Q. Pengesahan Analisis Transkrip

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1 Lampiran Q Pengesahan Analisis Transkrip Pengesahan semakan Analisis transkrip Temu bual Tugasan 1, transkrip berfikir secara verbal Tugasan Regulasi 1, transkrip berfikir secara verbal Tugasan Masalah Stoikiometri dan transkrip berfikir secara verbal Tugasan dan Regulasi 2 dilakukan seperti contoh berikut, Analisis Transkrip Temu Bual Tugasan 1 Nama Transkrip Temu bual Nama Anneesa Chetri 0.00 saat P1 Merujuk kepada soalan 1, apakah yang anda perlu tahu tentang konsep yang digunakan, bagaimana cara menghitung dan kegunaan relative atomic mass magnesium sulphate, MgSO 4? Anee 1 Cara nak kira relative molecule mass magnesium sulphate ialah tambahkan (Magnesium) 24 + (Sulfur) 32 + (Oksigen) 16x4 P2 Jawapan 120 Guna relative molecule mass untuk cari mol Merujuk kepada soalan 2, apakah yang anda perlu tahu untuk mencari bilangan molekul dalam 32 g oksigen, bagaimanakah cara menghitungnya? Dan bila ia digunakan? Kondisional Anee 2 Mula cari mol Oksigen, O 2, 32 bahagi 32 dapat 1 Kemudian dharab 6.02 x10 23 dapat 6.02 x10 23 P3 Merujuk kepada soalan 3, apakah konsep yang anda perlu tahu, bagaimanakah caranya untuk mencari molekul 150 cm 3 karbon dioksida dalam suhu bilik dan bila konsep ini digunakan? Anee 3 Mula tukar 150 centimeter 3 tukar desimeter 3 dapat 0.15 dm 3. Lepas tu nak cari mol karbon diokosida, P. P4 Anee bahagi 24 dm 3 dapat 6.25 Nak cari molekul 6.25 x 6.02x10 23 bahagi 24 dapat 3.76 x Merujuk kepada soalan 4, apakah konsep yang perlu anda tahu, bagaimanakah caranya untuk mecari formula empirik oksida P? Bilakah formula empirk digunakan? Mula bezakan berapakah berat P dan Q Cari mol P, Q masing-masing. P = 2.4 bahagi 24 dapat 0.1 Q= 4.8 bahagi 16 = 0.3 Nisbah mol = 0.1:0.3 =1:3 Formula empirik PQ 3 P. Strategi 3 P. Strategi 3 P5 Merujuk kepada soalan 5, apakah yang anda perlu tahu tentang konsep, strategi dan cara digunakan untuk mencari formula empirik daripada formula molekul? Anee 5 Untuk mendapatkan formula empirik daripada formula molekul. P 6 Merujuk kepada soalan 6, adakah anda boleh mengingat formula kimia, dan bagaimanakah anda mengingatnya? Anee 6 Daripada latihan Tengok contoh dalam buku rujukan dan sudah terbiasa. Tengok bilangan cas dalam molekul, element yang ada didalamnya berapa banyak. Selalu jumpa dan nak ingat-ingat. Prosedur P6 Bagaimana nak tentukannya Anee J6 Dah terbiasa. P7 Merujuk kepada soalan 7, apakah perkara yang perlu anda tahu menuliskan formula kimia dan persamaan kimia? Anee 7 Tahu simbolnya, potassium, K cas +1 Nitrate, NO 3 casnya -1 P8 Adakah menuliskan persamaan kimia mudah atau sukar? Anee 8 Menuliskan persamaan kimia senang juga. 409

2 Nama Transkrip Temu bual P9 Anee 9 P10 Anee 10 P11 Anee 11 P12 Anee 12 P13 Anee 13 P14 Anee 14 Kalau nak tahu persamaan senang. Kena hafal dan biasakan diri element-elementnya, formula-formula kimia. Lepas tu tulis persamaan, tuliskan reactant, product dan balance kan. Jika carbon compound, balance element carbon balance kan oksigen dan hidrogen sebelah kanan dan kiri anak panah. Apakah perkara yang sukar dalam menuliskan persamaan kimia seimbang? Senang. Merujuk kepada soalan 9, apakah yang anda faham tentang formula kimia iron(ii) oxide, Fe 2 O 3? Fe 2 O 3 faham, 1 mol Fe 2 O 3 adalah 2 mol iron dan 3 mol oksigen. Merujuk kepada soalan 10, anda hendak menukarkan jisim 5.05 g potassium nitrat, KNO 3 kepada gas oksigen yang terhasil. Apakah langkah-langkah yang perlu anda lakukan untuk mendapatkan jawapan? Mula tulis persamaan seimbang. Cari mol potassium nitrate, 5.05 bahagi RMM KNO 3 iaitu bahagi 101dapat 0.05 Volume gas oksigen = 0.05 bahagi 2 dharab 24 = 0.06 dm x 1000 = 6 cm 3 Adakah soalan no 10 itu mudah atau sukar? Soalan senang Apakah soalan yang mudah dalam tajuk formula kimai dan Persamaan kimia? Saya tak ingat, semua senang jika kita faham dan hafal. Apakah pendapat anda bagaimanakah seseorang pelajar boleh menguasai pengetahuan Formula kimia da Persamaan Kimia dan Masalah Stoikiometri? Pertama mula hafal atau biasakan diri cara menulis element, Kedua hafal formula, cari mol, contohnya, number of particles bersamaan jisim bahan bahagi relative molecule mass dharab Avogadro constant, lepas tu cari equation dan balance equation. Strategi 3 Strategi 3 Strategi 4 Prosedur Analisis Tugasan Regulasi 1 Tugasan Regulasi 1A Transkrip Berfikir Secara Verbal Jisim Molar, Isipadu molar dan Number Avogadro Regulasi Nama Syih Kategori Soalan 1 Calculate the molecular mass of Membaca 1 a. Bromine Membaca 1 1 Jisim molekul bromine Merancang 1 2 RAM Bromin ialah 80 Merancang x2 Merancang 6 4 =160 Jawapan b. Glucose, C 6 H 12 O 6. Membaca 1 5 RAM karbon,12; hidrogen, 1; oksigen,8 Menganalisis 1 6 C,12x6 + H, 12x1 + O, 16x6 Merancang 4 7 = =80 Merancang 6 c. Benzoic acid, C 6 H 5 COOH Membaca karbon, 5 hidrogen, 1 karbon, 2 oksigen, 1 hidrogen Menganalisis 1 12 Karbon,6x12 + hydrogen, 1x5 + karbon,12 + oksigen, 2x16 + hydrogen,1 Merancang 4 13 = Merancang 6 14 =122 Jawapan Soalan 2 Calculate the relative formula mass of Membaca a. Magnesium oxide, MgO Membaca 15 Magnesium 24 + oksigen, 16 Merancang 6 16 =40 Jawapan b. Aluminium nitrat, Al(NO 3 ) 3. Membaca 1 17 Aluminium, 27 + (nitrogen, 14 + oksigen,16x3)x3 Merancang (14 +48)x3 Merancang = 213 Pengiraan 1 20 =213 Jawapan c. Hydrated sodium carbonate, Na 2 CO 3.10H 2 O. Membaca 1 21 Sodium, 23x2 + karbon, 12 + okssigen,16x3+10(hidrogen,2x1+ oksigen, Merancang 6 16) (2)+10(16) Merancang Pengiaan 1 24 =286 Jawapan 410

3 Tugasan Regulasi 1A Transkrip Berfikir Secara Verbal Jisim Molar, Isipadu molar dan Number Avogadro Regulasi Soalan 3 Find the number of moles of the following gases at STP. Membaca 1 a g of sodium Membaca 1 25 Sodium, molar mass, 23 gmole -1. Menganalisis bahagi 23 Merancang 4 27 =2.5 mole ( menggunakan kalkulator) Jawapan b g of potassium nitrate, KNO 3. Membaca 1 28 Relative molecular mass, KNO 3, Merancang 2 29 Potassium, 36 + nitrogen,14 + oksigen, 16x3 Merancang 4 30 Dapat 101 Jawapan bahagi 101 Merancang 4 32 =0.04 mol Jawapan Soalan 4 Calculate the volume of the following gases at STP. Membaca 1 Molar volume 22.4 dm3 mole-1 at stp. Membaca 1 a mole oxygen gas Membaca x 22.4 dm 3 Merancang 6 34 =5.6 dm 3. Jawapan b. 2.5 mole of chlorine gas Membaca x 22.4 dm 3 Merancang 6 36 = 56 dm 3. Jawapan Soalan Dia suruh cari mol Merancang 1 38 Cari mole dapatkan volume Merancang bahagi 22.4 Merancang 6 40 Jawapan 0.16 mol Jawapan 41 Suruh cari bilangan molekul Matlamat 42 Gunakan 6x molekul mol -1 Merancang x 6x Merancang 6 44 Jawapan 9.6 x10 22 molekul Jawapan Transkrip Berfikir Secara Verbal Formula empirik dan Formula molekul (Tugasan Regulasi 1B) Regulasi Nama Ummi Soalan 1 1 Data Peratus dianggap jisim bagi atom Merancang 3 2 Buat kotak Merancang 3 3 Satu kulum untuk atom karbon, satu kulum untuk atom hidrogen Merancang 3 4 Jisim karbon= 85.8 g, Jisim hidrogen, 14.2 g Menganalisis 1 5 Nak dapat mol. Merancang 2 6 Jisim karbon 85.8 bahagi RAM karbon, 12 dapat 7.15 Merancang 4 7 Jisim hidrogen 14.2 bahagi RAM hydrogen 1 dapat 14.2 Merancang 4 8 Mol ratio setiap mol dibahagi mol terkecil Merancang 4 9 Hidrogen, 14.2 bahagi 7.17 dapat 2 Merancang 6 10 Karbon, 7.12 bahagi 7.12 dapat 1 Merancang 6 11 Mol ratio karbon: hidrogen= 1:2 Menganalisis 2 12 Formula empirik, CH 2 Jawapan 1 13 Determine the molecular formula X Membaca 2 14 (CH 2 )n= 70 Merancang 6 15 (12+1x2)n=70 Merancang n=70 Merancang 6 17 n=70 bahagi 14 dapat 5 Menghitung 18 (CH 2 )5 = C 5 H 10 Jawapan 19 Formula molekul, C 5 H 10 Jawapan Soalan 2 20 Mula buat 3 kulum Merancang 3 21 Satu kulum untuk karbon, satu kulum untuk hidroge, satu kulum untuk Merancang 3 bromin 22 Jisim karbon,12.77, hidrogen,2.13 dan bromin,85.10 Menganalisis 1 23 Karbon, bahagi RAM karbon,12 dapat 1.06 Merancang 4 24 Hidrogen,2.13 bahagi RAM hydrogen 1 dapat 2.13 Merancang 4 25 Bromin, 85.1 bahagi RAM Bromin, 80 dapat 1.06 Merancang 4 26 Untuk mol ratio, bahagi dengan mol terkecil,1.06 Merancang 4 27 Karbon, 1.06 bahagi 1.06 dapat 1 Merancang 6 28 Hidrogen, 2.13 bahagi 1.06 dapat 2 Merancang 6 29 Bromin 1.06 bahagi 1.06 dapat 1 Merancang 6 30 Mol ratio, C:H:Br=1:2:1 Menganalisis 2 411

4 (Tugasan Regulasi 1B) Regulasi 31 Formula empirik, CH 2 Br Jawapan 1 32 Determine the molecular formula. Mambaca 2 33 (CH 2 Br)n = 188 Merancang 6 34 (12+ 1x2 + 80)n = 188 Merancang n =188 Menghitung 36 n =188 bahagi 94 dapat 2 Menghitung 37 (CH 2 Br) 2 = C 2 H 4 Br 2 Mejawab 38 Formula molekul, C 2 H 4 Br 2 Jawapan Soalan 3 39 (i) Mass magnesium Merancang1 40 = Magnesium ribbon + lid + crucible crucible +lid Merancang = 1.8 g Menghitung 42 Mass Oksigen Merancang 2 43 =Magnesium oxide + lid+ crucible magnesium + crucible + lid Merancang = 1.18 g Menghitung 45 (ii) Calculate mole ratio Merancang 2 46 Mass Magnesium,1.8 g bahagi 24 dapat Merancang 4 47 Mass Oksigen, 1.18g bahagi 16 dapat Merancang 4 48 Mol ratio Mg:O=1:1 Menganalisis 2 49 (iii) MgO Jawapan Transkrip Berfikir Secara Verbal Formula kimia - Tugasan Regulasi 1C Regulasi Nama Ummi Form 4 Azam Soalan 1 1 Construct the chemical formula of the following compounds Membaca 2 (a) Calcium carbonate Membaca 1 3 Simbol calcium ialah Ca Merancang 5 4 Simbol carbonate ialah CO 3 Merancang 5 5 Cas bagi Ca dan CO 3 ialah +2 dan -2 Merancang 6 6 Formula ialah, CaCO 3. Jawapan 7 (b) Potassium sulphate Membaca 1 8 Simbol potassium ialah K Merancang 5 9 Simbol sulphate ialah SO 4. Merancang 5 10 Cas bagi K ialah +1 Merancang 5 11 Cas bagi SO 4 ialah -2 Merancang 5 12 Formula ialah K 2 SO 4 Merancang 6 (Jawapan) 13 (b) Aluminium hydroxide Membaca 1 14 Simbol bagi Aluminium ialah Al Merancang 5 15 Simbol bagi hydroxide ialah OH Merancang 5 16 Cas bagi Al ialah +3 Merancang 5 16 Cas bagi OH ialah -1 Merancang 5 18 Formula ialah Al(OH) 3 Metancang 6 (Jawapan) 19 (d) Lead (II) iodide Membaca 1 20 Simbol bagi lead ialah Pb Merancang 5 21 Simbol bagi iodide ialah I Merancang 5 22 Cas bagi Pb ialah +2 Merancang 5 23 Cas bagi I ialah -1 Merancang 5 24 Formula ialah PbI 2 Jawapan 25 (e) Iron(II) bromide Membaca 1 26 Simbol bagi iron ialah Fe Merancang 5 27 Simbol bagi bromide ialah Br Merancang 5 28 Cas bagi Fe ialah +2 Merancang 5 29 Cas bagi Br ialah -1 Merancang 5 30 Formulanya ialah FeBr 2. Metancang 6 Jawapan 31 (f) Sodium nitrate Membaca 1 32 Simbol sodium ialah Na Merancang 5 33 Simbol nitrate ilah NO 3 Merancang 5 34 Cas bagi sodium ialah +1 Merancang 5 35 Cas bagi nitrate ialah -1 Merancang 5 36 Formula ialah NaNO 3. Metancang 6 Jawapan 37 (g) Ammonia ialah NH 3 Membaca 1 38 (h) Sulphuric acid Membaca 1 412

5 - Tugasan Regulasi 1C Regulasi 39 Hidrogen simbolnya H Merancang 5 40 Sulphuric simbolnya, SO 4 Merancang 5 41 Cas hydrogen ialah +1 Merancang 5 42 Cas bagi sulfuric ialah +2 Merancang 5 43 Formulanya ialah H 2 SO 4 Metancang 6 Jawapan 44 (i) Tetrachloromethane Membaca 1 Tetrachloro ada empat chlorine 45 Simbolnya CCl 4 Metancang 6 Jawapan 46 (j) Carbon dioxide Membaca 1 47 Carbon adalah satu Mentafsir 48 2 oxide Mentafsir 49 Formulanya ialah CO 2 Metancang 6 (Jawapan) Soalan 2 State the name of each compound according IUPAC system. 50 (a) FeCl 2 51 Fe ialah iron Merancang 5 52 Cl ialah chlorine Merancang 5 53 Chlorine casnya -1 Merancang 5 54 Namanya Iron(II) chloride Metancang 6 (Jawapan) 55 (b) HCl 56 H ialah hydrogen Merancang 5 57 Cl ialah chlorine Merancang 5 58 Namanya hydrochloric acid Metancang 6 (Jawapan) 59 (c) CuSO 4 60 Cu ialah copper Merancang 5 61 SO 4 ialah sulphate Merancang 5 62 Cas Cu ialah +2 Merancang 5 63 Cas SO 4 ialah -2 Merancang 5 64 Namanya Copper (II) sulphate Metancang 6 (Jawapan) 65 (d) FeCl 3 66 Fe ialah Iron Merancang 5 67 Cl ialah chlorine Merancang 5 68 Cas bagi Fe ialah +3 Merancang 5 69 Chlorine casnya -1 Merancang 5 70 Namanya Iron (III) chloride Merancang 6 (Jawapan) 71 (e) KMnO 4 72 K ialah potassium Merancang 5 73 MnO 4 ialah manganate Merancang 5 74 Namanya potassium manganate Metancang 6 (Jawapan) 75 (f) Mg(OH) 2 76 Mg ialah magnesium Merancang 5 77 OH ialah hydroxide Merancang 5 78 Namanya magnesium hydroxide Metancang 6 (Jawapan) Transkrip Berfikir Secara Verbal -Chemical equation (Tugasan Regulasi, ID) Regulasi Nama Ummi Form 4 Soalan 1 Write a balance chemical equation for each of the following reactions Membaca 1 (a) When solid lead(ii) carbonate is heated strongly, it decomposed into solid Membaca 1 lead(ii) oxide and carbon dioxide is released, Solid lead(ii) carbonate is PbCO 3 Merancang 5 Product is PbO and CO 2. Merancang 5 PbCO 3 PbO + CO 2 Merancang 6 (Jawapan) (b) Nitrogen gas reacts with hydrogen gas to produce ammonia gas. Membaca 1 N 2 + H 2 produce NH 3 Merancang 5 N 2 + H 2 NH 3 Merancang 6 Persamaan ini tidak seimbang. Memantau 413

6 (Tugasan Regulasi, ID) Letakkan 3 di hadapan H 2 dan letakkan 2 di hadapan NH 3 N 2 + 3N 2 2NH 3 Kiri (anak panah) ada 2 nitrogen dan kanan (anak panah) ada 2 nitrogen Kiri (anak panah) ada 6 hydrogen dan kanan (anak panah) ada 6 hydrogen Regulasi Jawapan Menilai Menyemak (c) Solid calcium oxide dissolves in hydrochloric acid, produce calcium chloride Membaca 1 and water. CaO + HCl produce CaCl 2 + H 2 O Merancang 5 Letak 2 di hadapan HCl untuk sembangkan Merancang 6 Ca + 2HCl CaCl 2 +H 2 O Soalan 2 Soalan 3 The following equation shows the decomposition of potassium chlorate(v) by heat. Membaca 1 (a) Balance the given equation KClO 3 KClO + O 2 Membaca 1 Sudah balance. Jawapan Satu K disebelah kiri (anak panah) dan satu K disebelah kanan (anak panah). Menilai / Menyemak Satu Cl desebelah kiri (anak panah) dan satu Cl disebelah kanan ( anak panah). Menyemak Ada 3 atom O disebelah kiri (anak panah) dan 3 atom O disebelah kanan (anak Menyemak panah). (b)based on the balanced equation, find the volume of oxygen produced at room Membaca 1 temperature from the decomposition of 24.5 g of potassium chlorate(v). Relative atomic mass: O,16: Cl,35.5 ; K,39. Molar volume; 24 dm3 mol-1 at room Membaca 1 condition. Untuk cari mol O 2 Merancang 3 Tukar mass potassium chlorate kepada mol Merancang 4 Cari relative molecule mass KClO 3 Merancang x 3 = = Merancang 6 Bahagikan 24.5 dengan dapat 0.2 mole Merancang 4 Nisbah mol KClO 3 : mol O 2 ialah 1:1 Menganlisis 2 Nisbah mol KClO 3 : O 2 ialah 0.2 mol: 0.2mol Menganalisis 2 Volume O 2 = 0.2 x 24. Merancang 6 = 4.8 dm 3 Jawapan The following equation shows the reaction between sodium and water, Membaca 1 2 Na(s) + 2 H 2 O(l) 2NaOH(aq) + H 2 (g) (a) How many moles of sodium will react with 5 mole of water? Membaca 1 Nisbah mol air : mol sodium = 1:1 Menganalisis 5 mol water : 5mol sodium Jawapan (b) Find the mass of sodium needed to produce 3.01 x hydrogen molecules. Membaca 1 [Relative atomic mass: Na, 23; Avogadro contant; 6.02 x10 23 mole -1 ] Membaca 1 Tukarkan volume H 2 kepada mol Merancang x10 23 =0.5 mol Merancang 6 Avogadro constant Nisbah mol 0.5 mol H 2 : 1 mol Na Menganalisis 2 Mass of sodium = 1 x 23 Merancang 6 =23 g Jawapan Transkrip Analisis Tugasan Masalah Stoikiometri Transkrip Berfikir Secara Verbal Tugasan Masalah Stoikiometri Langkah Nama Syihab Tingkatan 4 Azam Soalan 1 2 Cari mol Sulfur = 1.28g bahagi RAM sulfur 32 bersamaan 0.04 Langkah 3 3 Klorin, 2.84g bahagi RAM klorin, 35.5 bersamaan 0.08 Langkah 3 4 Nisbah mol 0.04 :0.08 Langkah 3 5 Bahagi dengan mol terkecil, 0.04 Langkah 4(a) bahagi 0.04 dapat 1 Langkah 4(a) bahagi 0.04 dapat 2 Langkah 4(a) 8 Sulfur bersamaan 1, Klorin bersamaan 2 Langkah 4(a) 9 Formula 414mpiric SCl 2 Langkah 5 Jumlah Langkah 3 Langkah 414

7 Transkrip Berfikir Secara Verbal Tugasan Masalah Stoikiometri Langkah Soalan 2 11 Mula cari mol untuk semua 12 Sodium 29.2 g bahagi RAM sodium, 23 dapat 1.27 Langkah 3 13 Sulfur, 40.6 g bahagi RAM sulfur 32, dapat 1.27 Langkah 3 14 Oksigen 30.2 bahagi RAM oksigen 16, dapat 1.89 Langkah 3 15 Nombor mol terkecil, 1.27 bahagi setiap mol dengan 1.27 Langkah 4(a) 16 Sodium, 1.27 mol bahagi 1.27 dapat 1 Langkah 4(a) 17 Sulfur, 1.27 mol bahagi 1.27 dapat 1 Langkah 4(a) 18 Oksigen, 1.89 mol bahagi 1.27 dapat 1.5 Langkah 4(a) 19 Untuk membuat nombor bulat x 2 Langkah 4(b) 20 Sodium, 1mol x 2 = 2, Sulfur,1 mol x 2 =2, Oksigen,1.5 mol x 2= 3 Langkah 4(b) 21 Formula 415mpiric sebatian X ialah Na 2 S 2 O 3 Langkah 5 Jumlah langkah 4 langkah Soalan 3 23 Cari mol, 24 Karbon 92.3 g bahagi RAM karbon, 12 dapat 7.7 Langkah 3 25 Hydrogen, 7.7 g bahagi RAM hydrogen 1 dapat 7.7 Langkah 3 26 Untuk jadikan nombot bulat bahagikan dengan 7.7 Langkah 4(a) 27 Karbon, 7.7mol bahagi 7.7 dapat 1 Langkah 4(a) 28 Hidrogen, 7.7 mol bahagi 7.7 dapat 1 Langkah 4(a) 29 Karbon 1, hidrogen 1 Langkah 5 30 Formula empirik, CH Langkah 5 31 Nak cari formula molekul 32 (CH)n = 78 Langkah 5(a) 33 RAM, C=12, RAM, H=1 34 (12 + 1) n = 78 Langkah 5(a) 35 13n= 78 Langkah 5(a) 36 n = 78bahagi 13 = 6 37 Formula molekul = (CH) 6 Langkah 5(b) 38 = C 6 H 6 Langkah 5(b) Jumlah Langkah 5 langkah Soalan 4 40 Nak cari jumlah atom copper dalam tindak balas ini. 41 Equation, Al+ CuO produce Al 2 O 3 + 3Cu Langkah Al + 3CuO Al 2 O 3 + 3Cu Langkah 1 43 Nisbah mol Al : Cu = 2:3 Langkah 6(a) 44 Cari mol Cu, g bahagi RAM Al = 0.05 mol Langkah 3 46 Nisbah mol Al: Cu = 2Al : 3 Cu Langkah 6(a) 47 Mol Cu = 0.05 Al x3 =0.075 Langkah 6(b) 2 48 Nombor atom Cu = x Avogadro constant Langkah 6( c) 49 = x atom Langkah 6( c) 50 Bentuk piawai, Bilangan atom Cu = x atom Jumlah Langkah 5 Langkah Soalan 5 52 Equation, 2H 2 + O 2 2H 2 O Langkah 1 53 Nak cari berat air 54 2H 2 + O 2 2H 2 O Langkah 1 54 Nisbah mol H 2 : O 2 : H 2 O = 2:1:2 Langkah 6(a) 55 Isipadu H 2 = 448 cm cm 3 bagi 1000 = dm 3 Langkah sifar 57 Isipadu Hidrogen dibahagi 22.4 dm dm 3 bahagikan 22.4 dm 3 dapat 0.02 mol Langkah 3 59 Bilangan mol air sama nisbah mol hidrogen 60 Mol air = 0.02 mol Langkah 6(b) 61 Berat air = 0.02 mol x (2xRAM, H=1 + RAM,O=16) Langkah 7 62 = 0.02 x 18=0.036 g Langkah 7 Jumlah langkah 6 langkah Soalan 6 65 Reaction, NH 3 + HCl NH 4 Cl Langkah 1 66 Nak cari berat HCl dan NH Nisbah mol NH 3 : HCl : NH 4 Cl = 1:1:1 Langkah 6(a) 68 Molar mass NH 4 Cl = (N=14)+4(H=1) +Cl(35.5) Langkah 2 69 = = Molar mass NH 3 = 14+3 =17 Langkah 2 71 Molar mass HCl = = 36.5 Langkah 2 72 Mass NH 4 Cl =4 kg = 4000g Langkah sifar 415

8 Transkrip Berfikir Secara Verbal Tugasan Masalah Stoikiometri Langkah 73 Mol NH 4 Cl = = 74.5 mol =75 mol Langkah 3 74 Nisbah mol NH 4 Cl: NH 3 : HCl = 75:75:75 Langkah 6(b) 75 Mass NH 3 = 17 x 75= g Langkah 7(b) 76 = kg 77 Mass HCl = 75 x 36.5 = g Langkah 7(a) 78 = kg 79 =2.74 kg Jumlah langkah 7 langkah Soalan 7 81 Equation, CaCO 3 + 2HCl H 2 O + CaCl 2 + CO 2 Langkah 1 82 Nisbah mol CaCO 3 : HCl : H 2 O : CaCl 2 : CO 2 = 1:2:1:1:1:1 Langkah 6(a) 83 Molar mass CaCO 3 = (Ca=40) +( C=12) +(O=48)=100 Langkah 2 84 Mol CaCO 3 = 20 = 0.2 mol Langkah (Mol CaCO 3 = mol CO 2 ) Langkah 6(a) 86 Mol CO 2 = 0.2 mol Langkah 6(b) 87 Isipadu CO 2 = 0.2 x 22.4 dm 3 Langkah 7 88 = 4.48 dm 3 Jumlah langkah 6 Langkah Analisis Tugasan dan Regulasi 2 Contoh analisis Soalan 1, soalan 2 dan soalan 3 Tugasan seperti berikut, No baris Transkrip berfikir Secara Verbal Syih bagi soalan pertama 6 Untuk mencari remaining 7 Remaining mean carbon yang tidak react. Konsep 8 Cari mol of carbon 9 4 g carbon react with 8 g of copper oxide 10 4 gram carbon = 4 bahagi 12 dapat ( guna kalkulator) 11 8 gram copper oxide = 8 bahagi dengan Cu, 64 campur oksigen 16 Strategi bahagi 79 dapat 0.1 mol CuO Strategi mol CuO mesti darab ½ nilai untuk dapat mol Carbon Strategi mol of carbon yang react dengan 0.1 mol CuO 15 Carbon yang tidak bertindak balas 0.05 mol Strategi x12 = 0.6 g mass carbon yang bertindak balas 17 Mass Carbon yang tidak bertindak balas Strategi 6 Soalan 2 2 mole of sodium react with 1 mole of chlorine Konsep 2 mole of sodium and 1 mole of chlorine gain 2 mole of sodium chloride Konsep Soalan 3 Ratio of mole Na: Cl 2 : NaCl = 2: 1: 2 Strategi 4 Mass of sodium 2.3 g 2.3 bahagi 23 dapat 0.1 mole 0.1 mol sodium produce 0.1 mol sodium chloride Strategi 5 Molar mass sodium chloride, equal 58.5 gmole -1. Mass NaCl=0.1 mole x 58.3 gmole -1 Strategi 6 = 5.83 g Dari 9.6 g Copper(II) sulphide reacts with 0.2 mole oxygen gas Mole ratio CuS : O 2 : Cu: SO 2 = 1:1:1:1 Strategi 4 Jika 0.2 mol CuS : 0.2 mol Cu Strategi 4 Tetapi 0.1 mol CuS Molar mass CuS 96 gmole -1. Mass 9.6 g CuS digunakan Mol 0.1 mol CuS Tak boleh react dengan semua 0.2 mol Oxygen Mol yang boleh bertindak balas dengan 0.1 mol O 2. Strategi 5 Mol Cu yang dihasilkan ialah 0.1 mol Strategi mol Cu = 0.1 x 64 gmol -1. Strategi 6 =6.4 g 416

9 Disahkan oleh, Pengesahan Pertama, Saya telah menyemak analisis-analisis Transkrip Temu bual Tugasan 1, Transkrip Berfikir secara verbal, Tugasan Regulasi 1, Transkrip berfikir secara verbal, Tugasan Masalah Stoikiometri dan Transkrip berfikir secara verbal Tugasan dan Regulasi 2 bagi kajian ini. (Pn Jamaliah binti Ghazali ) (Guru Penolong Kanan Kokurikulum dan mengajar Kimia) Sekolah di mana Kajian dijalankan, Pengesahan Kedua, Saya telah menyemak analisis-analisis Transkrip Temu bual Tugasan 1, Transkrip berfikir secara verbal, Tugasan Regulasi 1, Transkrip Berfikir secara verbal Tugasan Masalah Stoikiometri dan Transkrip berfikir secara verbal, Tugasan dan Regulasi 2 bagi kajian ini. (Pn Nur Azleena binti Hussen) Guru Kimia Sekolah di mana Kajian dijalankan 417

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